72142280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2551}}^1$

素因数の和:2670

約数の個数: 64

約数和(自身を含む): 187418880

約数和(自身を除く): 115276600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2551, 2828, 3535, 4040, 5102, 5656, 7070, 10204, 12755, 14140, 17857, 20408, 25510, 28280, 35714, 51020, 71428, 89285, 102040, 142856, 178570, 257651, 357140, 515302, 714280, 1030604, 1288255, 1803557, 2061208, 2576510, 3607114, 5153020, 7214228, 9017785, 10306040, 14428456, 18035570, 36071140, 72142280]

約数ペア:

[(1, 72142280), (2, 36071140), (4, 18035570), (5, 14428456), (7, 10306040), (8, 9017785), (10, 7214228), (14, 5153020), (20, 3607114), (28, 2576510), (35, 2061208), (40, 1803557), (56, 1288255), (70, 1030604), (101, 714280), (140, 515302), (202, 357140), (280, 257651), (404, 178570), (505, 142856), (707, 102040), (808, 89285), (1010, 71428), (1414, 51020), (2020, 35714), (2551, 28280), (2828, 25510), (3535, 20408), (4040, 17857), (5102, 14140), (5656, 12755), (7070, 10204)]